Airflow 1.9.0 ExternalTaskSensor Retry_delay=30 Yields TypeError: Can't Pickle _thread.RLock Objects
As the titles says; in Airflow 1.9.0 if you use the retry_delay=30 (or any other number) parameter …
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Airflow 1.9.0 ExternalTaskSensor Retry_delay=30 Yields TypeError: Can't Pickle _thread.RLock Objects